Added a more elaborate description of the powersection

invoff/README.md

@@ -14,7 +14,7 @@ Attenuverter with Offset Bias and external Offset CV Input.
 
 ## Powersection
 
-Plug in any way because the bridge rectifier will always channel the positive part to the positive rail.  Look at a [live simulation here](http://www.falstad.com/circuit/circuitjs.html?cct=$+1+0.000005+10.20027730826997+50+5+43%0AR+240+192+176+192+0+0+40+12+0+0+0.5%0AR+240+288+176+288+0+0+40+-12+0+0+0.5%0AS+240+192+320+192+0+0+false+1+2%0AS+240+288+320+288+0+0+false+1+2%0Ad+368+224+400+192+1+0.805904783%0Ad+432+224+400+192+1+0.805904783%0Ad+400+256+368+224+1+0.805904783%0Ad+400+256+432+224+1+0.805904783%0Aw+400+256+400+352+0%0Aw+400+192+400+112+0%0Ap+544+112+544+224+1+0%0Ap+544+352+544+224+1+0%0Aw+320+208+320+224+0%0Aw+320+224+368+224+0%0Aw+320+272+320+224+0%0Aw+480+176+480+224+0%0Aw+432+224+480+224+0%0Aw+480+304+480+224+0%0A209+624+256+624+320+0+0.000047000000000000004+11.188286845565713+1%0A209+624+144+624+192+0+0.000047000000000000004+11.18828684556572+1%0Aw+624+224+688+224+0%0Aw+688+112+736+112+0%0Aw+688+352+736+352+0%0Ag+688+224+688+256+0%0Ar+784+272+784+224+0+10%0Ar+784+224+784+176+0+10%0Aw+784+112+736+112+0%0Aw+784+352+736+352+0%0Aw+784+224+848+224+0%0Ag+848+224+848+256+0%0Aw+544+224+624+224+0%0Aw+544+112+400+112+0%0Aw+544+352+400+352+0%0Aw+544+352+624+352+0%0Aw+544+112+624+112+0%0Aw+320+304+480+304+0%0Aw+480+176+320+176+0%0Aw+624+320+624+352+0%0Aw+624+256+624+224+0%0Ab+240+112+349+356+0%0Ab+752+64+898+388+0%0Ax+368+-49+752+-46+6+24+Any-Way%5CsPowersection%5Csfor%5CsEurorack%0Ax+243+89+345+107+4+12+Flip%5Csby%5Csclicking%5Cson%5C%5Cnone%5Csof%5Csthe%5Csswitches%0Ax+777+44+887+62+4+12+Some%5Cscrap%5Csthat%5Csuses%5C%5Cn%5Csthe%5Cs%C2%B112V%0A370+784+112+784+176+1+0%0A370+784+272+784+352+1+0%0Aw+624+144+624+112+0%0Aw+624+192+624+224+0%0Aw+624+112+688+112+0%0Aw+624+352+688+352+0%0Ab+512+80+609+374+0%0Ax+505+58+623+76+4+12+Output%5Csvoltage%5Cslevel%5C%5Cnaffected%5Csby%5Csdiode%5Csdrop%0A).
+Plug in any way because the bridge rectifier will always channel the positive part to the positive rail.  Look at a [live simulation here](http://www.falstad.com/circuit/circuitjs.html?cct=$+1+0.000005+10.20027730826997+50+5+43%0AR+240+192+176+192+0+0+40+12+0+0+0.5%0AR+240+288+176+288+0+0+40+-12+0+0+0.5%0AS+240+192+320+192+0+0+false+1+2%0AS+240+288+320+288+0+0+false+1+2%0Ad+368+224+400+192+1+0.805904783%0Ad+432+224+400+192+1+0.805904783%0Ad+400+256+368+224+1+0.805904783%0Ad+400+256+432+224+1+0.805904783%0Aw+400+256+400+352+0%0Aw+400+192+400+112+0%0Ap+544+112+544+224+1+0%0Ap+544+352+544+224+1+0%0Aw+320+208+320+224+0%0Aw+320+224+368+224+0%0Aw+320+272+320+224+0%0Aw+480+176+480+224+0%0Aw+432+224+480+224+0%0Aw+480+304+480+224+0%0A209+624+256+624+320+0+0.000047000000000000004+11.188286845565713+1%0A209+624+144+624+192+0+0.000047000000000000004+11.18828684556572+1%0Aw+624+224+688+224+0%0Aw+688+112+736+112+0%0Aw+688+352+736+352+0%0Ag+688+224+688+256+0%0Ar+784+272+784+224+0+10%0Ar+784+224+784+176+0+10%0Aw+784+112+736+112+0%0Aw+784+352+736+352+0%0Aw+784+224+848+224+0%0Ag+848+224+848+256+0%0Aw+544+224+624+224+0%0Aw+544+112+400+112+0%0Aw+544+352+400+352+0%0Aw+544+352+624+352+0%0Aw+544+112+624+112+0%0Aw+320+304+480+304+0%0Aw+480+176+320+176+0%0Aw+624+320+624+352+0%0Aw+624+256+624+224+0%0Ab+240+112+349+356+0%0Ab+752+64+898+388+0%0Ax+368+-49+752+-46+6+24+Any-Way%5CsPowersection%5Csfor%5CsEurorack%0Ax+243+89+345+107+4+12+Flip%5Csby%5Csclicking%5Cson%5C%5Cnone%5Csof%5Csthe%5Csswitches%0Ax+777+44+887+62+4+12+Some%5Cscrap%5Csthat%5Csuses%5C%5Cn%5Csthe%5Cs%C2%B112V%0A370+784+112+784+176+1+0%0A370+784+272+784+352+1+0%0Aw+624+144+624+112+0%0Aw+624+192+624+224+0%0Aw+624+112+688+112+0%0Aw+624+352+688+352+0%0Ab+512+80+609+374+0%0Ax+505+58+623+76+4+12+Output%5Csvoltage%5Cslevel%5C%5Cnaffected%5Csby%5Csdiode%5Csdrop%0A). The ferrite beads act as a barrier for quick changes or spikes in the rails coming from the busboard (good for switching PSUs or in a environment with digital modules). The combination of 47uF and 100nF caps (C1, C3, C2, C4) help keeping a power reserve on the boundary to the outside world. The additional bypass capacitors C5 and C6 ar located directly besides the opamps U1 and U2.  
 
 ![](images/schematic_powersection.png)